Internal-combustion engine.



F. M. MURRAY.

INTERNAL COMBUSTION ENGINE. D APPLICATION mm mm; a. 1911.

1 ,256,720. I Patented Feb. 19, 1918 3 SHEETS-SHEET I.

d 14* 28.14 d C a H 14 'FKHNK M-MUKRHY .f. M. MURRAY. INTERNALCOMBUSTION ENGINE. APPIL'ICATION FILED MAR]. 8 I917- Patnt ed Feb. 19,1918.

' a SHEETS- SHEET 2.

o 0 d o o o o o o- ."o I II I O I v I I I my? o m2 28K @0 I 35 o 37 o oI I I 144 v o o 0' 0 o o o o 0' o FR'aNK M- MURKHY attoznc 13 F. M.MURRAY. I INTERNAL COMBUSTION ENGINE.

APPLICATION FILED MAR. 8 I911.

.Patnted Feb. 19,1918.

3 $HEETSSHEET 3.

' avmwntoi FRHNK M. MURRHY I Latte an,

M. MURRAY, 0F CADYVJILLE, .NEW YORK.

rn'rnanst-oomsus'rxon ENGINE;

.I P ifi at n of hetters ratentl 1- pat t 13 Application filed March 8,1917. 7 Serial No. $3,482.

new and useful Improvements,-inInternal- OombustmnZ-Engmes of wh1ch'thefollowmg is a spec1 fication. reference being had ,to

the accompanying drawings.

This invention relates-t0 ments in internal combustion engines and itisan object of the invention to provide a novel and improved device ofthis general character including a slide valve. for 0011- I trolling theintake and the exhaust and which valve operateswith a minimum offrictional resistance and which also eliminates .the use of'a valve ofthe puppettype. v

Itis also an object. of't-heinvention to 'provide a device of thisgeneral character including a novel and improved slide valve forcontrolling the intake and the exhaust and which'valve includes apositively operated member coactingwith both the intake and the exhaust.together with a supplemental member coact-inp with the intake alone andoperated under the influence of the first' named member. v

The invention consists in the details of construction and in-thecombination and ar v rangement of the several parts of my improvedinternal combustion'engine whereby certain important advantages areattained and the device'is rendered simpler, less exensive and otherwisemore convenient and advantageous. for use, all as will -be.herein-.

after more fully set forth. .The novel features of the invention may bethe.

In order that my proceed tojdebetter understood, 1 will now wherein-'- Irel is a fragmentary view partly-in Figu section and partly n elevat1on'of-amotor 0 a four cycletype constructed in accordance 5 with anembodiment of my invent1on;

Fig. 2 is a view in top plan of the device as disclosed in Fig. 1 withthe top late and of Clinton and cert ain improvepiston;

invention will hereinafterbe definitelyclaimed. i 10 orthe'like.

spark plug'removed and "with certain of the. parts disclosed in Fig. 1;omitted for clarity in disclosure; e 7 I 3 is a' view in plan of thedivision or stat onary; plate asherein employed in connection withmy'improved'valve;

Fig. 4 is a view in .top. plan ofjthe supplemental' member employedin.my imv proved valve. asherein disclosed: h

;Fig. 5- is a fragmentary'view in top plan 0.

of my improved motor with thetop plate and mainmember of my improvedvalve removed,. the supplemental member 'of. the jalve beingshown in asecond position or at its position during the exhaust stroke of the 5Fig. 6 is a fragmentary sectional view taken substantially 'on the line(F-f Fig. 2;and

'Fig. 7 is a view partly in elevation and partly. in sectionillustrating an internal combustion engine constructed in accordancewith a further embodiment of my invention. 'As disclosed in theaccompanying draw mgs, 1 denotes the. cylinder of an internal combustionengine having itsopposite ends open and in which worksthe piston 2 operatively engaged throughfthe medium-of the sidewall of the casing 5'isprovided with a hand opening 9 normally closed by the plate 1 Itis to benoted that the opening 9 is so positioned asto'permit convenient accessto the.bloc k 6 sothat saidlbl'ock can be easily applied or removed asthe necessities of pracrequire. This operation is facil1- tice may f.tated. in view of the fact that the bolts 7 are disposed transverselythrough the rod 3. It is also thought to be self-evident that after therod 3 has been disconnected from the crank 4, the piston 2 may bereadily with-v 10 '0 the annular 40 as a Wearplate and also drawnthrough the outer end of thecylinder 1. It WillitlSObG self-evident thatthe piston'2 may be'readily inserted within the cylinder 1 andoperatively engaged with the ,5 era 4 b .a'reverse operation. a o

der -1'is the removable head H preferably cast and provided with thewater jacket 11 1' in communication with the-water jacket 12 1 of thecylinder 1. The head H is also provided with t'he'intake port 14 and theexhaust port 15, said ports being in communication With'the conicalchamber 16 formed in the inner face of the head H. The head 5 H isadaptedlto snugly fit within the cylin- :jflat and preferably machinedand extending facrC-ss the top or flat faceof the head H is.gq'avgrooveor channel 19 havingoneend p ortion of greater depth, asindicated at 20. I The intake port 14 is in communication with theportion 20 of the groove, while the exhaust port 15 is in communicationwith the opposite en'cl'portion of the groove. xResting upon the base ofthe-groove 19 is a plate 21. The plate 21 extends the entire length ofthe groove 19 and overlies the portion 20,.of the groove. This plate 21serves as a division plate as will hereinafter be more particularly setforth. 3

An intermediate portion of the plate 21 is provided with the openingthrough ay-which is directed the spark plug S when inapplied position.By this said plug is -.".in e ans the plug S serves to hold the plate 21in applied. position and against longitudinal movement.

1" S is particularly disclosed in F igr 1 the 'fsp rk plug S extendsthrough the head H at the apex of the conical chamber 16.

i The plate 21 is provided with the ports 14- and 15 in alinementorregister with the .55 ports 14 and 15 respectively.

' p {Also positioned within the groove 19 and resting upon the plate 21is a slide member 23 of a length in excess of the length of the groove19 so that one end portion of the member 23 extends beyond a side of thehead I H. The extendedportion of the member 23 is provided with therecess or slot 21 through which extends the upper end poracting with theouter end of the cylinthe free end tion of the vertically disposedrocker arm The upper or free end portion ofthe arm 25 also extendsbetween the rollers 26 or other anti-friction members carried by theextended portion of the member 23.

j The member 23 is provided with the ports 11 and 15 adapted to coactwith the ports lat and 15in a manner to be hereinafter more particularlyset forth and in order that the requisite endwise movement may beimparted to the member provided at a 11 and 15 23, said member is pointintermediate the ports with the longitudinally disposed slot 27through-which the spark plug S is directed.v H v Seated within theportion 20 of the groove 19 and restingupon'the base thereof andunderlying the-plate 21 is a supplemental slide member '28. Thesupplemental mem-.

ber 28 is provided with a port 11 adapted to coact with-the port .11 aswill also be hereinafter more particularly set forth.

The outer end portion of the member 28 is provided with the slot 29 inwhich extends portion of the pin 30 depending from the adjacent endportion of the member 23. The slot 29 is of a length equal to the widthof the port 14 plus the diameter of the pin 30 whereby it will beperceived that upon certain of the strokes of the piston 2, namely,compression stroke and exhaust stroke; the member 28 will be idle dur-'ing the final half of each of said strokes so that the port 11 will beclosed by themember 28 during the final half of either the compressionstroke or exhaust stroke of the piston 2.

The movement of the member 23 under the influence of the arm .25 isequal to four times the width of the port 11 or 15, it beare of equalwidth.

As illustrated in Fig. 1, the piston 2 has completed the first half ofits intake stroke. Upon the completion of the intake stroke the wallw ofthe port 14* will be in the position as indicated by dotted lines at a.Upon the compression stroke the wall a: will move to the positionindicated by dotted lines at Z; and back to the positio a. Upon thereturn movement of the member 23 as effected by the last half of thecompression stroke the member 28 will remain stationary as per-- mittedby the slot 29 and the pin 30 will assume a position at the end of'saidslot 29 opposite to that shown in Fig. 1. Upon the firing stroke thewall as will assume the position at 0 but the port 14 will be maintainedclosed by the member 28 as the port 14 passes over the port 14 in viewof the fact -ing understood that said ports 14- and l5 that the member28 or more particularly the port 14 thereof isin one position rearwardlyof the port 14". Upon the exhaust -strok'e the wall at of at d 'a ndthen; back to..c. This'movement bringsthe port 14 of the-member 28 inreg ister with the-port 1 L Detachably engaged with the outeror eat.- isthe removable plate li 'and 15 in face of the head H 31 providedfwiththe ports alincment or register with the ports 1i and 15 respectively. 1The plate 21 'is provided with an open slot 32 through which the pin 30is disposed.

It will be self-evident that. theplate '21 maintains the members 23and'28 in separated relation so that the movement of the member 28depends entirely upon the 'pin 30 carried by thegmember 23. It is alsoto 4 be observed that the plate 21 is provided with the openings 33through which oil or the like is adapted to pass inorder that the member28 may also be lubricated.

may be applied in any manner which best meets therequirementsofpractice. Tn order that-the member 28 may be positively held againstmovement during its idle period, I provide an edge of the member 28 with the suitably spaced notches or recesses A 34; adapted to receive aprotuberance carried by" the spring'member 36-mounted within a suitablerecess 37 formed inthe adjacent side wall of the portion 20 of thegroove 19. 'At this time I wish to state that I do not desire to limitmyself to the exact form of spring 36 or protuberance 35 as anyyieldable or resilient means may be employed for positively holding. themember 28- against movement-which will operate with convenience andfacility.

As is illustrated in Fig. 1, the rocker arm 25 extends within the casing5'and has its lower; end bifurcated, as at 88 to straddle the eccentricshaft 39. The shaft 39 is operatively the crank shaft 41, and. saidshafts 39 and il'rotate in a ratio of l to 2 for a purpose which isbelieved to be self-evident. It is also-to be noted that the serves tomove the upper free end portion of l the arm 25 a distance equal to fourtimes the width. of the portli or 15. e

' "In the embodiment of my invention as illustrated in Fig. 7 of theaccompanying drawings,. 1' disclose. a construction which ma 'y bereadily appliedto-internal combustion enginesalready in use andparticularly where the port communicating with the cylinder isarrangedin a side thereof.

As disclosed in Fig. 7, the. cylinder 1 is prlovided adjacent itsupper-end with the exhaust .port 4E5.

over which is disposed the plate ,43 intake port i4 and the The outerface of the plate i3 is provided with a suitable. groove port 42provided with the the. port 14 mev'ef 16-ii 1'whichis mounted the to theposition as indicated by dotted lines" 'and1,45 -.adapted to relative-tothe members 23 28 is also adapted The oil engaged, as indicated at 40,with the members 23 eccentric shaft 39- which it may slide member 23 andthei' supplemental member 28. v j member- 23 is fprovidedwith the portsit coact with the portsae and 45 respectively, while-the supplemental"or auxiliary member 2551s provided with the port i P-adapted't-o Coact"Wlilh. the port The -members23 and 28 are provided with the coactin-g.pin 30and slot 29 opera'tin'gin a manner and for the purpose as vThevhas been hereinbefore particularly set forth and 28. The members 23 and28 -have also interposed therebetween the plate 21? for purpose which isbelieved'to be self-evident'in view of-what hashereinbefore been setforth relative to the plate 21.

The auxiliary or supplemental 'n'iember to be maintained in its"idlepositions in the same manner as has been described relative tothemember 28. In fact it is to be stated that the construc tion andoperation of theco'ntrolling means for the ports ii'and i5 issubstantially the same as has hereinbefore been disclosed relative tothe ports 14: and 15. I

The members 23 and 28 are ;-maintained in applied positionthroughthe-medium of the removable plate 31?.- The upper" end portion ofthe groove 2L6 is closed by the removable plate-i? which is providedwithan' be properly lubricated. The plate i7 also serves to maintain theplate 21 against endwise movement as is thought to be clearly disclosedin Fig. 7. 'The'lower or extended portion of the member 23 hasdetachably engaged therewith as at %9, the rod -50. The rod 50 tendswithin the casing 5 and'is operatively engaged with the eccentric shaft39 where by the requisite movement and 28', It is also preferred thatthe rod 50 extend through the elongated upstanding bearing, 51 carriedby the casing 5 so that said rod 50 is maintained in a fixed path oftravel. It isalso to be understood that the eccentric shaft 39 isadapted to be rotated relative to ratio of 1 to 2.

From the foregoing description, it is thought to be obvious that aninternal combustion engine constructed in accordance with my inventionis of an extremely simple and comparatively inexpensive nature and isparticularly well adapted for use by reason of the. convenience andfacility with be-assembled, and it will also be obvious that myinvention is susceptible of some change and modification withoutmaterial departure from the principles and spirit thereof and for thisreason I do not wish to be understood as limiting mvself to is. imparted,to

the crank shaft 41f in a relation with said intake and exhaust ports,

a supplemental slide member provided with a port adapted to coact withthe intake port of the cylinder, means for imparting movement to thefirst named slide member, coacting means-carried by both of the slidingmembers whereby the same are caused to move in unison during certainperiods of the movement of the first named slide member, and a springmember co-acting with the supplemental slide member for positivelyholding the same against movement during its periods of idleness.

2. An lnternal combustion engine including a cylinder provided with anintake port and with an exhaust port, a piston within the cylinder, a'slide member provided with ports adapted to be brought into operativerelation with said intake and exhaust ports,

a supplemental slide member provided with a port adapted to coact withthe intake port of the cylinder, means for imparting movement to thefirst named slide member, (:0-

acting means carried by both of the sliding members whereby the same arecaused to move in unison during certain period softhe movement of thefirst named slide member, and means co-acting with the supplementalslide member'for positively holdingthe supplemental slide member againstmovement during its periods of idleness.

3. An internal combustion engine including a cylinder provided with anintake port and with an, exhaust port, a piston within the cylinder, aslide member provided with ports adapted to be brought into operativerelation with said intake and exhaust ports, a supplemental slide memberprovided with a port adapted to coact with the intake port of the,cylinder,'means for imparting movement to the first named slide member,00-

acting means carried by both of the sliding members whereby the same arecaused to move in unison during certain periods of the movement of-thefirst named" slide memhers, and means for maintaining the slide membersin separated relation.

4. An internal combustion engine including a cylinder provided with anintake port and with an exhaust port, a piston'within the cvlinder, aslide member provided with ports adapted to be brought into operativerelation with said intake and exhaust ports,

. a supplemental slide member providedwith a port adapted to coact withthe intake port of the cylinder, means forimparting movement to thefirst named slide member, said supplemental slide being provided with aslot disposed in the same direction as the direction of travel of themember, and a part carried by'the first named slide member extendingwithin theslot of the supplemental slide member, the slot in thesupplemental slide member being of a length equal to the width of theintake port plus a diameter of the part within the slot.

5. An internal combustion engine includ ing a cylinder provided with anintake port and an exhaust port, the portion of the cylinder providedwith said ports being provided with a groove in communication with theports, a wall of said groove beino provided with a recess, a pistonwithin the cylinder a slide member provided with ports adapted to bebrought into operative relation with said intake and exhaust ports, asupplemental slide member provided with a port adapted to co-act withthe intake port of the cylinder, means for imparting move.- ment to thefirst named slide member, e0 acting means carried by both of the sliding.IIlQHIbEJS whereby the same are caused to move in unison during certainperiods of the movement of the first named slide member, and a springpositioned within the recess in the wall of the groove and co-actingwith the supplemental slide member for holding the supplemental slidemember against movement during its periods of idleness.

6. An internal combustion engine including a cylinder provided with anintake port and with an exhaust. port, a piston within the cylinder, aslide member provided with sliding members whereby the same are causedto move in umson during certain perlods of the movement of the firstnamed slide member. v

7. An internalcombustion engine mcluding a cylinder provided with anintake port and with an exhaust port, a piston within the cylinder, aslide member provided with ports adapted to be brought into operativerelation with said intake and exhaust ports, a supplemental slide memberprovided With a port adapted to co-act with the intake port of thecylinder, a movable arm operserving to move the slide member a distanceIn testnnony whereof I hereunto aflix my slgnature 1n the presence oftwo wltnesses.

F RANK M. MURRAY.

atively engaged with the slide member, an eccentric shaft rotated by thepiston, a portion of the movable arm straddling said eccentric shaft,and co-acting means carried by both of the Sliding members whereby thesame are caused to move in unison during certain p 'iods oi the movementof the first named slide member, said eccentric shaft Witnesses EMMET L.RYAN, FRANK P. RYAN.

Copies of this patent may be obtained for flve oents each, by addressingthe Commissioner of Patentu,

Washington, D. C.

